Steam or hot-water heater



(No Model.) Y

T. M. EDWARDS.

STEAM 0R HOT WATER HEATER. No. 532,773. Patented Jan. 22-, 1895.

qxhtmdow "m: NORRIS nz-rsns cc, wowumn" mam NNNNNN o c NITED STATESPATENT ()FFIQE.

STEAM 0R H'OT' -WYATEIR HEATER.

SPECIFICATION forming part of Letters Patent No. 532,773, dated January22, 1895.

Application filed June 18, 1894- To aZZ whom it may concern:

Be it known that I, THOMAS M. EDWARDS, a citizen of the United States,residing in the city and county of New, London and State of Connecticut,have invented certain 'new and useful Improvements in Steam or Hot-Water Heaters, which improvements are fully setforth and described-inthe following specification, reference being had to the accompanyingsheet of drawings.

The object of this invention is to produce a hot water heater or steamgenerator the construction of which shall be such that a very largeproportion of the water to be heated or converted into steam will beexposed to the action of the furnace heat and which shall also utilizeto the greatest extent possible all of the caloric products ofcombustion. My said heater also provides for a free and constantcirculation of water and reaches these desirable results by simple andeasily constructed apparatus.

In order that my invention may be more readily explained and understoodthe accom panying drawings have been provided, in Which-- Figure 1illustrates my said heater in side elevation, the usual surroundingwalls of brick work, used in connection with the same, being shown invertical, central section, in order that the parts of the generatorproper may be more clearly understood, and Fig. 2 is a plan View of asingle section or system of steam pipes located within the furnace.

Referring to the drawings the letter a denotes a dome, supported uponwalls of brick work b which serve to inclose a chamber 0 within which islocated an ordinary furnace consisting of a grate d which serves to support the fire and beneath which grate is located the ash-pit e. Throughth e front wall of chamber 0 are openings bb leading respectively to thefire-pot and ash-pit. EX- tending downward from dome a into chamber 0,near the front end thereof, is a pipe composed of a large number ofcollars or ring-sections g said pipe being denoted as a whole byreference letter 6' and at the opposite or rear end of chamber 0 is asimilar pipe flikewise composed of ring sections g. In order to closethe lower end of pipes e and f the lower section g of each of said pipesis are No. 514,994. (No model.)

' stood by reference to Fig. 1-.

The several sections 9 composing pipes e and fare supported andheld invertical alignment by means of a rod or bolt h passing centrallytherethrough. The upper end of each rod or bolt 71. extendsupwardthrough an archshaped yoke klocated over each opening from dome a topipes e andf, and such upper end of each rod or bolt is provided with ahead h.- The lower end of each rod or bolt is threaded and passesoutwardfrom pipes e and fthrough an opening provided therefor in thelower or cup-section g of each of said pipes. A nut 72 when introducedon the threaded end of each of the rods h and screwed home against thecup sections 9, serves to bind closely together the several sectionscomposing each pipe 3 and f and to hold the upper end of each of saidpipes in close contact with the dome a.

It will be seen by reference to Fig. 1 that each pipe e{ and f issuspended from the cenbe used in the manner substantially like thespokes of a wheel, and it will be also seen that by reason of theconstruction of yokes 7c the passage of water and steam from pipes e andf to'the dome or vice versawill be in no way retarded.

Each section g of pipe is connected by means of steam pipe 111tonitscorresponding section gin pip'ef, said steam pipe m. beingpreferably disposed in "a zigzag manner as shown in plan view in Fig. 2.Said pipes m extend laterally a considerable distance beyond thestand-pipes e and f and serve to conduct the water by a zig-zag coursetoward pipe 6'. The cooler portions of water, when returned to thestand-pipe f, are first influenced by those products of combustion thathave been in a large degree relieved of caloric yet are enough hotterthan said returning water to raise the temperature of the latter. As thewaterseeks to circulate and travel nace grows more and more intense andsaid water is finally discharged from pipes m into the stand-pipe e in asuper-heated condition. Pipes m, are placed on an incline as shown and,to accomplish this, pipe fis made con siderably longer than the pipe 8',said pipe ter of yokes'lc, one or more of which yokes may closed orformedcup shape as readily underupward throughpipes m the heat in thefur- IOC 7 being elongated by means of a pipe section g of desiredlength, introduced between the sections 9 and the dome a.

When my device is in use water standing in pipes f is caused to travelby action of the heat upward through the inclined pipes m; into pipe 8',and thence into the dome displacing the cooler water which then passesdownward into pipe fand as the same becomes heated, again passes intopipe m and it will then be understood thata complete and constantcirculation of water is provided from the dome through pipef, pipes mand pipe e back to the dome, from which dome steam or water may bedelivered through one or more pipes at to be used for heat or power.

Suitably supported Within chamber a andextending nearly to the dome a isa bafileplate at and extending downward from said dome nearly to thefloor is a similar plate 71., the location of said baffle-plates beingreadily understood by reference to Fig. 1. These baffle-plates n and nfit within the spaces formed by the bends or turns in the pipes m, andserve to direct the products of combustion by an indirect coursecalculated to utilize the heat in the most economical manner until suchproducts finally escape through an opening 0 provided in the rear wallof brick work 12 into a suitable chimney or fine.

Assuming now that a generator of the described construction is providedand ready for use (water having been introduced in any proper manner)and a suitable fire provided on grate d, it will be seen that theproducts of combustion will pass upward from said fire against thebottom of dome at around pipe 6 and through pipes m, over baffle-plate nand down again through pipes m, under the lower end of baffle-plate nand thence upward again through pipes m surrounding pipe f and finallyoutward through opening 0, the directions taken by said products ofcombustion in its action upon pipes e, f and 071, being shown by arrowsin Fig. 1. It will thus be seen that said products of combustion will beutilized so long as any heat remains in the same.

An outlet pipe 19 may be provided leading from the lower cup section gof pipe f by means of which, when desired, water may be drained from thedevice, said last named section 9 being the lowest point in which waterwill settle. This pipe 19 may also be utilized as a feed-pipe.

My device being composed of sections as described, maybe made of anydesired capacity, longer or shorter rods it being used in accordancewith the number of sections 9 employed. It is very simple in itsconstruction, is not expensive to produce, may be easily operated andserves to generate steam quickly with a comparatively small body offire.

Having thus described my invention, I claim- 1. In a steam generator, incombination, a steam-dome of cylindrical form, water chamberse'fsuspended from said dome, and pipes, arranged in aninclinedhorizontal zigz'agform, con necting the said water chambers,substantially as specified.

2. In a steam generator, in combination, a

steam-dome, having a hole in the under side near each end, a yoke overeach hole, a water chamber suspended from the dome at each hole,comprising a series of sections, the bottom section being cup shape andperforated, a bolt through each chamber and its respective yoke, forsecuring the sections together and supporting them from the dome,andpipes connecting said water chambers; said connecting pipes beinghighest at the end immediatelyover the fire-pot, as and for the purposespecified.

3. In a steam generator, in combination, a cylindrical dome, a furnace,Water chambers suspended from said dome within the said furnace, pipesarranged in horizontal zigzag form connecting said water chambers, andbaffle-plates within said furnace for providing an indirect circulationbetween said connecting pipes, said plates fitting within the spacesformed by the bends or turns in the pipes all substantially as and forthe purposes specified.

THOMAS M. EDWARDS.

Witnesses:

FRANK II. ALLEN, ALONZO W. LUTHER.

